Outside temperature display
At outside temperatures below about +39 °F (+4 °C), a “snowflake symbol” appears in the display. The
symbol flashes at first, then stays on until the outside temperature rises above +43 °F (+6 °C) ⇒ .
When the vehicle is not moving or when you are driving at very low speeds, the temperature displayed may be slightly higher than the actual outside temperature.
The measurement range is from -40 °F (-40 °C) to +122 °F (+50 °C).
Compass display (if applicable)
On vehicles equipped with compass display, the current compass direction is indicated in the instru-
ment cluster display when the ignition and navigation system are switched on ⇒ page 15, Compass.
Selector lever positions
The selector lever position is shown both on the side of the selector lever and in the instrument cluster display. The respective gear may also be shown in the instrument cluster display in Drive D and Sport Drive S, as well as in Tiptronic® mode.
WARNING
Failure to heed warning lights and instrument cluster text messages can cause the vehicle to break down in traffic and result in a collision and serious personal injury.
x Never ignore warning lights or text WARNINGS.
x Always stop the vehicle as soon as it is safe to do so.
x Park the vehicle at a safe distance from moving traffic and where no part of the hot cata-lytic converter and exhaust system can come into contact with flammable materials under the vehicle, such as dry grass, brush, spilled fuel, etc.
x A broken down vehicle presents a high accident risk for itself and others. Switch on emergency flashers and set up a warning triangle to warn oncoming traffic.
WARNING
Roads and bridges may be dangerously icy even if the outside air temperature is above freez-ing.
x If you use the outside temperature display to tell you about frost conditions, remember that roads can even ice over at temperatures above +39 °F (+4 °C). Always remember: even if the “snowflake symbol” is not displayed, there could still be black ice on the road.
x Never rely exclusively on the outside temperature display.
NOTICE
Failure to heed warning lights or text WARNINGS can result in vehicle damage.
The instrument cluster displays and their arrangement may vary depending on the vehicle model and engine. For displays without warning and information messages, malfunctions are only signaled with indicator lights.
If there are multiple warning messages, the symbols are displayed for several seconds in order of importance. The symbols are displayed until the cause has been corrected.
Tread depth
Most driving situations require as much tread depth as possible and similar tread depth for the tires on the front and rear wheels. This is especially true when driving in winter weather, at low temperatures
and under wet conditions ⇒ .
In most countries the legally permissible minimum tread depth is 1/16 in. (1.6 mm), as measured in tread grooves next to the wear indicators. Please be sure to obey country-specific legal requirements.
Winter tires are no longer suitable for winter operation once the tread pattern is worn down to a depth of 3/16 in. (4.8 mm).
The tread depth of new tires can differ between tire models and manufacturers because of the differ-ent design features and tread patterns.
Tread wear indicator (TWI) in the tire
The 1/16 in. (1.6 mm) high wear indicators are molded into the bottom of the tread grooves of the
original tires running across the treads ⇒ fig. 126. Several wear indicators are evenly spaced around the tire. Markings on the sides of the tires (for example “TWI” or symbols) show the position of the wear indicators.
Wear indicators show when the tires are worn down. The tires must be replaced no later than when the tread pattern is worn down to the wear indicators.
WARNING
Worn tires are dangerous and can cause loss of vehicle control including serious personal injuries.
x Never drive a vehicle when the tread on any tire is worn down to the wear indicators, re-place them sooner.
x Worn tires do not grip the road properly, especially on wet roads, increasing your risk of “hydroplaning” and loss of control.
x Worn tires reduce the ability of your vehicle to handle well in normal and difficult driving situations and increase braking distances and the risk of skidding.
Tire wear and damage
